Miller TIG support
Miller Maxstar 400 TIG Support
Use this page to verify the Maxstar 400 TIG package, torch path, cooling/control needs, and common first checks.
Machine specs
Heavy industrial DC TIG/stick power source with pulsed TIG, carbon arc gouging, 7-inch LCD controls, Auto-Line 208-600 V input, integrated cooler power, and water-cooled TIGRunner package paths.
Process
DC TIG (GTAW), Pulsed DC TIG (GTAW-P), Stick (SMAW)
Input power
208-600 V, 1- or 3-phase, 50/60 Hz
Amperage range
3-400 A
Machine class
Heavy industrial
Catalog source
Page 64
Package rows
5 catalog rows
Catalog package lookup
| Catalog item | Package label | Fitment note |
|---|---|---|
| 907873 | Maxstar 400 power source only | Use the package label to confirm torch, cooler, and remote-control requirements before ordering accessories. |
| 907873002 | Maxstar 400 power source only, CE | Use the package label to confirm torch, cooler, and remote-control requirements before ordering accessories. |
| 907873001 | Maxstar 400 TIGRunner | Use the package label to confirm torch, cooler, and remote-control requirements before ordering accessories. |
| 907873003 | Maxstar 400 TIGRunner, CE | Use the package label to confirm torch, cooler, and remote-control requirements before ordering accessories. |
| 951000098 | Maxstar 400 complete package | Use the package label to confirm torch, cooler, and remote-control requirements before ordering accessories. |
Compatible accessories
Runner Cart
Part 300244. Catalog-listed accessory for this machine package.
Coolmate 3.5
Part 301788. Catalog-listed accessory for this machine package.
Coolmate 3.5 Quick Connect
Part 301789. Catalog-listed accessory for this machine package.
Cooler Adapter
Part 301791. Catalog-listed accessory for this machine package.
TIG Coolant
Part 043810. Catalog-listed accessory for this machine package.
Automation Interface Connection Kit
Part 278161. Catalog-listed accessory for this machine package.
Weld Current Sensor
Part 300179. Catalog-listed accessory for this machine package.
Dinse-Style Connector 50 mm
Part 042418. Catalog-listed accessory for this machine package.
Dinse-Style Extension Connector 50 mm
Part 042419. Catalog-listed accessory for this machine package.
Dinse/Tweco Adapter
Part 042465. Catalog-listed accessory for this machine package.
Dinse/Cam-Lok Adapter
Part 042466. Catalog-listed accessory for this machine package.
Water-Cooled TIG Torch Connector
Part 195377. Catalog-listed accessory for this machine package.
Air-Cooled TIG Torch Connector
Part 195379. Catalog-listed accessory for this machine package.
Weldcraft Gas Hose Quick Connect
Part QRG. Catalog-listed accessory for this machine package.
Weldcraft Water Hose Quick Connect
Part QRW. Catalog-listed accessory for this machine package.
Wireless Remote Foot Control
Part 301580. Catalog-listed accessory for this machine package.
RFCS-14 HD Foot Control
Part 301589. Catalog-listed accessory for this machine package.
RCC-14 Fingertip Control
Part 151086. Catalog-listed accessory for this machine package.
RCCS-14 Fingertip Control
Part 043688. Catalog-listed accessory for this machine package.
RMS-14 On/Off Control
Part 187208. Catalog-listed accessory for this machine package.
RMLS-14 Switch
Part 129337. Catalog-listed accessory for this machine package.
RHC-14 Hand Control
Part 242211020. Catalog-listed accessory for this machine package.
Wireless Remote Hand Control
Part 301582. Catalog-listed accessory for this machine package.
14-Pin Remote Extension Cable, 25 ft
Part 242208025. Catalog-listed accessory for this machine package.
14-Pin Remote Extension Cable, 50 ft
Part 242208050. Catalog-listed accessory for this machine package.
14-Pin Remote Extension Cable, 80 ft
Part 242208080. Catalog-listed accessory for this machine package.
Gas Tungsten Arc Welding Publication
Part 250833. Catalog-listed accessory for this machine package.
Coolmate 3.5
Part 301788. High-output Maxstar/Dynasty TIGRunner packages.
Coolant
Part 043810. Water-cooled torch systems and TIGRunner packages.
RFCS-14 HD
Catalog-listed foot control path across Miller TIG packages.
Wireless remote foot control
Wireless package option on selected Syncrowave and Dynasty systems.
Approved buy links
These are existing registry-approved Amazon links for this machine page. Use the part number and machine package above as the compatibility check before buying.
| Item | Part number | Notes | Buy |
|---|---|---|---|
| Air-Cooled TIG Torch Connectorcable_or_adapter | 195378 | 50 mm Dinse-style for Multimatic 235/255, CST, Syncrowave 300/400, Maxstar 210/280/400, and Dynasty 210/300/400. | View on Amazon |
| Air-Cooled TIG Torch Connectorcable_or_adapter | 195379 | 50 mm Dinse-style connector for one-piece A-200 (WP-26) air-cooled torch. | View on Amazon |
| Dinse-Style Connector Kitcable_or_adapter | 042533 | Accepts #4 to #1/0 AWG cable. Catalog lists Dinse/Tweco secondary-connection power-source paths. | View on Amazon |
| QuietPulse Expansion Memory Cardmachine_accessory | 301790 | For Maxstar 210/280/280 Multiprocess/400/800 manufactured prior to serial ND040985L. | View on Amazon |
| Water-Cooled TIG Torch Connectorcable_or_adapter | 195377 | 50 mm Dinse-style connector with water return line for Weldcraft water-cooled torches. | View on Amazon |
| Weldcraft W-280 water-cooled torch kitcable_or_adapter | 300990 | Spec sheet listed Maxstar 400 water-cooled package torch kit option with W-280 torch, cable cover, work clamp, flowmeter regulator, gas hose, and AK4GL kit. | View on Amazon |
| Weldcraft W-400 water-cooled torch kittig_torch | 300186 | Spec sheet listed W-400 (WP-18SC) water-cooled torch kit option. | View on Amazon |
Compatible torch paths
Weldcraft W-250 water-cooled torch kit
Part 300185. Spec sheet listed Maxstar 400 water-cooled package torch kit option.
Weldcraft W-280 water-cooled torch kit
Part 300990. Spec sheet listed Maxstar 400 water-cooled package torch kit option with W-280 torch, cable cover, work clamp, flowmeter regulator, gas hose, and AK4GL kit.
Weldcraft W-375 water-cooled torch kit
Part 301268. Recommended Maxstar 400 water-cooled torch kit and Complete package torch kit.
Weldcraft W-400 water-cooled torch kit
Part 300186. Spec sheet listed W-400 (WP-18SC) water-cooled torch kit option.
Weldcraft A-200 contractor kit with RFCS-14 HD
Part 301549. Air-cooled TIG/stick contractor kit with A-200 torch, RFCS-14 HD foot control, stick holder, work clamp, regulator, gas hose, AK2C kit, and TIG torch connector.
Need More Help?
What to check first
Unstable arc
Inspect tungsten contamination first. Verify collet tightness. Inspect cup or gas lens seating. Verify shielding gas flow.
Poor gas coverage
Inspect cup condition. Verify gas lens seating. Check flow rate. Inspect hose or fitting leaks.
Torch overheating
Verify cooling system on water-cooled setups. Inspect torch cable and handle heat. Check amperage against torch class. Verify front-end consumable fitment.
Verify torch series before ordering
TIG front-end parts are not universal. Match the torch series, tungsten diameter, gas lens or standard setup, and cooling requirement before ordering. Amazon links remain optional buying references only and are not used as compatibility truth.